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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-63833] Refactor CollectionBulkLoaderImpl to not hold locks as members</title>
                <link>https://jira.mongodb.org/browse/SERVER-63833</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-57432&quot; title=&quot;Prevent MODE_X and MODE_S locks from being yielded and reacquired&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-57432&quot;&gt;&lt;del&gt;SERVER-57432&lt;/del&gt;&lt;/a&gt; we discovered that the class itself is using the locks in an unconventional fashion that can lead to confusion by thinking it &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c01b04e5ec53149c0513342bd567b77de1f3fe77/src/mongo/db/repl/storage_interface_impl.cpp#L256&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;holds a lock in MODE_IX while actually having a MODE_X lock&lt;/a&gt;. What&apos;s more, the underlying code &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c01b04e5ec53149c0513342bd567b77de1f3fe77/src/mongo/db/repl/collection_bulk_loader_impl.cpp#L89&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;requires the lock to be MODE_X&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;The confusion stems from the fact it treats locks as movable entities when they are meant to only be used within scopes, releasing themselves when they leave it. The class instead obtains a lock during construction and releases it only when it goes out of scope, even though it gets called during different times for the various stages.&lt;/p&gt;

&lt;p&gt;As a result we should cleanup the method so that it acquires the lock in each method instead of assuming a lock during the entire lifetime of the object.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1986382">SERVER-63833</key>
            <summary>Refactor CollectionBulkLoaderImpl to not hold locks as members</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</assignee>
                                    <reporter username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</reporter>
                        <labels>
                            <label>techdebt</label>
                    </labels>
                <created>Fri, 18 Feb 2022 15:15:28 +0000</created>
                <updated>Sun, 29 Oct 2023 21:42:13 +0000</updated>
                            <resolved>Fri, 30 Sep 2022 12:31:48 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="4868259" author="xgen-internal-githook" created="Fri, 30 Sep 2022 12:31:11 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jordi Olivares Provencio&apos;, &apos;email&apos;: &apos;jordi.olivares-provencio@mongodb.com&apos;, &apos;username&apos;: &apos;jordiolivares&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63833&quot; title=&quot;Refactor CollectionBulkLoaderImpl to not hold locks as members&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63833&quot;&gt;&lt;del&gt;SERVER-63833&lt;/del&gt;&lt;/a&gt; Refactor CollectionBulkLoaderImpl locks&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/926591a3d5657eb271b275e6fd49db663b325227&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/926591a3d5657eb271b275e6fd49db663b325227&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2151449">SERVER-70208</issuekey>
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            <issuekey id="1768556">SERVER-57432</issuekey>
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